Added support for version missmatch handling

refs https://github.com/TryGhost/Toolbox/issues/280

- Email notification handling logic needs to be added to Ghost. Ideally there should be as little code landing in the core as possible - mostly data fetching and hooking modules together.
- The primary email handling logic for the `Accept-Version`/`Conent-Version` header missmatch is done in `api-version-compatibility-service` module, and the `mw-api-version-mismatch` allows to intercept request with the missmatch and call the api version compatibility service to do it's job. The mw-error-handler gives each case of client BEHIND or AHEAD of the Ghost version a unique error code, so that the versioning compatibility service has data to distinguish different cases

package.json

@@ -58,6 +58,7 @@
     "@sentry/node": "6.19.6",
     "@tryghost/adapter-manager": "0.2.28",
     "@tryghost/admin-api-schema": "2.14.0",
+    "@tryghost/api-version-compatibility-service": "0.1.0",
     "@tryghost/bookshelf-plugins": "0.3.18",
     "@tryghost/bootstrap-socket": "0.2.17",
     "@tryghost/color-utils": "0.1.12",
@@ -91,7 +92,8 @@
     "@tryghost/members-stripe-service": "0.10.0",
     "@tryghost/metrics": "1.0.8",
     "@tryghost/minifier": "0.1.12",
-    "@tryghost/mw-error-handler": "0.2.0",
+    "@tryghost/mw-api-version-mismatch": "0.1.0",
+    "@tryghost/mw-error-handler": "0.2.1",
     "@tryghost/mw-session-from-token": "0.1.28",
     "@tryghost/nodemailer": "0.3.20",
     "@tryghost/nql": "0.9.1",

yarn.lock

@@ -1605,6 +1605,11 @@
     "@tryghost/errors" "^1.0.0"
     lodash "^4.17.11"
 
+"@tryghost/api-version-compatibility-service@0.1.0":
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/@tryghost/api-version-compatibility-service/-/api-version-compatibility-service-0.1.0.tgz#1c51db4a9ad0995019430714440d14bb7a2ab532"
+  integrity sha512-2nsd0i+izrRLlbMKZnFFt9Yo2rGP/5vITDfwPmwJ8gaP62LFCjvPbu+xY0epx+XHlYgBTv302BLqwAHlq2OqvA==
+
 "@tryghost/bookshelf-collision@^0.1.20":
   version "0.1.20"
   resolved "https://registry.yarnpkg.com/@tryghost/bookshelf-collision/-/bookshelf-collision-0.1.20.tgz#4384ace6d35c3e53039c60a324e12422504fc7aa"
@@ -1817,6 +1822,15 @@
     utils-copy-error "^1.0.1"
     uuid "^8.3.2"
 
+"@tryghost/errors@1.2.11":
+  version "1.2.11"
+  resolved "https://registry.yarnpkg.com/@tryghost/errors/-/errors-1.2.11.tgz#3b3725f5ae8c35d4f264386e1e8fe39009713900"
+  integrity sha512-C7zFxqP9QjGBOHd7nRMzsAU9OlK71dhYkqPInYgLFLyIT7j4fFKgn8Z4ZQ6ucs7v7qG3UKoo0U7vnMGJAOFuag==
+  dependencies:
+    lodash "^4.17.21"
+    utils-copy-error "^1.0.1"
+    uuid "^8.3.2"
+
 "@tryghost/express-dynamic-redirects@0.2.8":
   version "0.2.8"
   resolved "https://registry.yarnpkg.com/@tryghost/express-dynamic-redirects/-/express-dynamic-redirects-0.2.8.tgz#67b4f19c6210734e0226e6c8f18c0ad7ce2a75a2"
@@ -2157,13 +2171,18 @@
   dependencies:
     lodash "^4.17.11"
 
-"@tryghost/mw-error-handler@0.2.0":
+"@tryghost/mw-api-version-mismatch@0.1.0":
-  version "0.2.0"
+  version "0.1.0"
-  resolved "https://registry.yarnpkg.com/@tryghost/mw-error-handler/-/mw-error-handler-0.2.0.tgz#236c207a0c5b62953445623c105bca00f730f45f"
+  resolved "https://registry.yarnpkg.com/@tryghost/mw-api-version-mismatch/-/mw-api-version-mismatch-0.1.0.tgz#69dce2ce48052f1a2766ad8bc7e4cb77c7827cde"
-  integrity sha512-b+PcBqzTK/ekJ9SeKlMSq874FLjPrWiF4jw73gFilITmTSMDVcaEconaJj54dJ7/zOMQLDuNqDTLJV/WODPywQ==
+  integrity sha512-OvQM1RsAj8UArbAo6A+W4CzQC9BuppEolyfYy2aXZ16RYgodHR23l7MAiMqIuYeZVLv3357EbdUHnLcC4arhNw==
+
+"@tryghost/mw-error-handler@0.2.1":
+  version "0.2.1"
+  resolved "https://registry.yarnpkg.com/@tryghost/mw-error-handler/-/mw-error-handler-0.2.1.tgz#6ce970a6b7f1ec8732ef083e674ee48604c8b4ba"
+  integrity sha512-lQq25Lw9RK6UoIOW1g/A/Vg7hGKXMthbBdc0+fPV0nM0KPqs3a1AXRaOpZA857KO+eDPY6tgY0jmLaKsPDRNcQ==
   dependencies:
     "@tryghost/debug" "^0.1.9"
-    "@tryghost/errors" "1.2.10"
+    "@tryghost/errors" "1.2.11"
     "@tryghost/tpl" "^0.1.8"
     lodash "^4.17.21"
     semver "^7.3.6"